In many notions, the People of the Meng Slaves were considered barbaric, biased, and foolish. Cai Wei also harbored a bit of that prejudice, but her interactions with Tuoba Liang overturned this notion.
Tuoba Liang was an intelligent and thoughtful man who rapidly accepted new ideas. When Cai Wei proposed constructing shops and establishing a commercial street in Northern Ridge to vigorously develop its economic and cultural systems, Tuoba Liang did not hesitate to express his agreement.
His agreement with Cai Wei wasn't out of fear or submission to power, but a genuine endorsement of Cai Wei's excellent ideas.